uxcell 3" x 3/8" Resin Bond Plain Diamond Grinding Wheel Grinder 150 Grit 75% Product Name : Diamond Grinding Wheel;Type : Plain;Main Material : Diamond, Resin Concentration : 75%;Grit : 150;Outside Diameter : 80mm / 3" Hole Dia. : 13mm / 1/2";Thickness : 8mm / 3/8" Diamond Depth : 3mm / 1/8";Color : Silver Tone, Brown Net Weight : 72g;Package Content : 1 x Diamond Grinding Wheel